CN109667708A - Composite wind turbine blade and the preparation method and application thereof - Google Patents
Composite wind turbine blade and the preparation method and application thereof Download PDFInfo
- Publication number
- CN109667708A CN109667708A CN201710951098.2A CN201710951098A CN109667708A CN 109667708 A CN109667708 A CN 109667708A CN 201710951098 A CN201710951098 A CN 201710951098A CN 109667708 A CN109667708 A CN 109667708A
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- blade
- web
- blade root
- fan blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 57
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 57
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000003365 glass fiber Substances 0.000 claims description 36
- 239000012779 reinforcing material Substances 0.000 claims description 19
- 239000012948 isocyanate Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 150000002513 isocyanates Chemical class 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 239000005056 polyisocyanate Substances 0.000 claims description 8
- 229920001228 polyisocyanate Polymers 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- -1 isocyanates compound Chemical class 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 125000005442 diisocyanate group Chemical group 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 238000005457 optimization Methods 0.000 claims description 2
- 210000001015 abdomen Anatomy 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 description 27
- 239000004814 polyurethane Substances 0.000 description 27
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000011120 plywood Substances 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 239000011162 core material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- AZYRZNIYJDKRHO-UHFFFAOYSA-N 1,3-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC(C(C)(C)N=C=O)=C1 AZYRZNIYJDKRHO-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- ADZSGNDOZREKJK-UHFFFAOYSA-N 4-amino-6-tert-butyl-3-ethylsulfanyl-1,2,4-triazin-5-one Chemical compound CCSC1=NN=C(C(C)(C)C)C(=O)N1N ADZSGNDOZREKJK-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-UHFFFAOYSA-N Dicyclopentadiene Chemical compound C1C2C3CC=CC3C1C=C2 HECLRDQVFMWTQS-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention relates to a kind of composite wind turbine blades and the preparation method and application thereof.The blade includes leaf shell, web, spar cap and blade root, which is characterized in that the spar cap is prepared using polyurethane resin, and the leaf shell is prepared using epoxy resin.The present invention improves the intensity of fan blade, makes fan blade relatively light and shortens the production cycle to save the production cost of fan blade.
Description
Technical field
The invention belongs to wind turbine manufacturing fields, more particularly to a kind of composite wind turbine blade and its preparation side
Method and application.
Background technique
Wind energy is considered as most one of clean, the most environmentally friendly energy obtainable at present, and therefore, wind turbine is increasingly
It is concerned by people.
Normal wind turbine blades (abbreviation fan blade) are usually prepared in this way: being prepared using priming by vacuum method
Then two half blades are stacked placement each other and use structure glue bond by two half blades.
All blade assemblies of fan blade such as spar cap, web, blade root and leaf shell are usually by glass fiber reinforcement one kind
Resin system is made.However, the aspect of performance using a kind of resin system in wind turbine has limitation, for example, epoxy resin
There is in raising mechanical property and in terms of the production cycle of reduction length limitation, and the shrinking percentage of unsaturated polyester resin height and mechanical property
It can be poor.
2012/0244006 A1 of US discloses a kind of method for preparing wind turbine by polyurethane.However, the Shen
Please disclosed in polyurethane system deposit the tank time less than 30 minutes, this is not suitable for preparing big wind turbine blade.
2015/155195 A1 of WO discloses pultrusion and injection method and polyurethane hybrid system, with conventional polyurethanes body
System compares, and improves mechanical property and extends the operable time of resin.
2016/0040651 A1 of US discloses a kind of method comprising the first beam of blade is formed by the first resin material
Cap simultaneously has the second resin material injection leaf shell mold to form leaf shell.First resin material include in polyester or vinyl esters extremely
Few one kind, and the second resin material includes at least one of epoxy resin, bicyclopentadiene or polyurethane.
However, polyurethane is to moisture-sensitive, it is difficult to be used to prepare the leaf shell comprising Ba Sha carpentery workshop for core material.This is because
Ba Shamu generally comprises the water of 8 weight %-12 weight %.In order to use polyurethane resin to prepare leaf shell, it is necessary to fill Ba Shamu
Divide dry to remove the moisture inside Ba Sha wood.Therefore, the production cycle can be more much longer than conventional epoxy fan blade.
Therefore, it is desirable to develop a kind of to combine the advantages of polyurethane mechanical property is good and high production efficiency while avoiding poly- ammonia
Fan blade of the ester to defect caused by moisture-sensitive.
Summary of the invention
The object of the present invention is to provide can avoid gathering simultaneously the advantages of good and high production efficiency in conjunction with polyurethane mechanical property
Fan blade and its application of the urethane to defect caused by moisture-sensitive.
Therefore, according to the first aspect of the invention, a kind of composite wind turbine blade is provided, the blade include leaf shell,
Web, spar cap and blade root, which is characterized in that the spar cap is prepared using polyurethane resin, and the leaf shell uses epoxy resin system
It is standby.
According to the second aspect of the invention, the method for preparing above-mentioned composite wind turbine blade is provided, which is characterized in that packet
Include following steps:
Spar cap is formed using polyurethane resin and optional reinforcing material and optionally uses polyurethane resin or epoxy resin
Prefabricated blade root and web are formed with optional reinforcing material；
Gained spar cap and prefabricated blade root and optional reinforcing material are put into leaf shell mold tool, epoxy resin is injected and are allowed to
It is formed by curing half blade；With
Two half blades and web are adhesively-bonded together to form fan blade；
Wherein when prefabricated blade root and/or web are prepared using epoxy resin, corresponding component is optionally formed together with leaf shell.
According to the third aspect of the invention we, the wind turbine comprising above-mentioned composite wind turbine blade is provided.
By the present invention in that preparing the leaf shell of fan blade with usual resins system such as epoxy resin and using polyurethane
Resin prepares other components such as spar cap, web, blade root to improve the intensity of fan blade, make fan blade relatively light and contract
Short production cycle is to save the production cost of fan blade.
Detailed description of the invention
The present invention is illustrated with reference to the accompanying drawing, in which:
Fig. 1 shows the endurance test curve of sample obtained by embodiment 1.
Fig. 2 shows the endurance test curve of sample obtained by embodiment 2.
Fig. 3 shows the part flow diagram for preparing fan blade of an embodiment according to the present invention.
Fig. 4 shows the structural schematic diagram of the fan blade of an embodiment according to the present invention.
Fig. 5 shows the structural schematic diagram of the wind turbine of an embodiment according to the present invention.
Specific embodiment
Each aspect of the present invention is described in detail now.
According to the first aspect of the invention, a kind of composite wind turbine blade is provided, the blade include leaf shell, web,
Spar cap and blade root, which is characterized in that the spar cap is prepared using polyurethane resin, and the leaf shell is prepared using epoxy resin.
Polyurethane resin is not specially required in the present invention.Polyurethane resin for use in the present invention can usually pass through
Compound and diisocyanate and/or polyisocyanates at least two pairs of reactive hydrogen atoms of isocyanates it is anti-
It should obtain.
Usually consider use such compound as having at least two pairs of reactive hydrogen atoms of isocyanates
Compound has two or more reactive groups, such as OH group, SH group, NH group, NH in the molecule2Group
And CH acid groups.It is preferable to use polyether polyol and/or polyester polyol, particularly preferably use polyether polyol.It is preferred that making
With the polyalcohol with 200 to 800mgKOH/g, particularly preferred 300 to 500mgKOH/g hydroxyl value.The viscosity of polyalcohol is preferred
≤ 500mPas (at 25 DEG C), more preferably≤300mPas (at 25 DEG C), particularly preferably≤100mPas (at 25 DEG C).It is preferred that polynary
Alcohol has at least 60% secondary hydroxyl, preferably at least 80% secondary hydroxyl, especially preferably 90% secondary hydroxyl.Particularly preferred base
In the polyether polyol of propylene oxide.
Use common aliphatic, it is alicyclic and especially aromatic diisocyanate and/or polyisocyanates as
Polyisocyanate component.The example of suitable polyisocyanates is 1,4- tetramethylene diisocyanate, 1,5- pentane diisocyanate
Ester, 1,6- hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 2,2,4- and/or 2,4,4- front three
Base hexamethylene diisocyanate, bis- (4,4 '-isocyanatocyclohexyl) methane or its mixture with other isomers, 1,
4- cyclohexylene diisocyanate, 1,4- phenylene diisocyanate, 2,4- and/or 2,6- toluene di-isocyanate(TDI) (TDI), 1,5- naphthalene
Diisocyanate, 2,2 '-and/or 2,4 '-and/or 4,4 '-methyl diphenylene diisocyanate (MDI) and/or its advanced homology
Object (pMDI), 1,3 and/or 1,4- it is bis--(2- isocyanato- propyl- 2- yl)-benzene (TMXDI), 1,3- (double isocyanato- first
Base) benzene (XDI).It is preferred that with methyl diphenylene diisocyanate (MDI), particularly by methyl diphenylene diisocyanate and more benzene
The mixture of Quito methylene polyisocyanates (pMDI) composition is as isocyanates.It is described by methyl diphenylene diisocyanate
The preferred content of monomer of mixture with polyphenyl polymethylene polyisocyanates (pMDI) composition is 40 to 100 weight %, excellent
It is selected as 50 to 90 weight %, especially preferably 60 to 80 weight %.The NCO content of polyisocyanates used should be preferably greater than 25
Weight %, preferably greater than 30 weight %, are especially preferably more than 31.4 weight %.The MDI used should preferably have at least 3 weights altogether
%, preferably at least 20 weight %, particularly preferably at least 2, the 2 '-methyl diphenylene diisocyanates and 2 of 40 weight % are measured,
The total content of 4 '-methyl diphenylene diisocyanates.The viscosity of isocyanates should be preferably≤350mPas (at 25 DEG C), especially
It is preferred that≤200mPas (at 25 DEG C).
It is preferred that polyurethane reactive mixture preferably also includes other than known reactive component and additive and additive
Filler such as carbon nanotube, barium sulfate, titanium dioxide, short glass fiber or natural fiber or laminar mineral such as wollastonite
Or muscovite.It is preferred that defoaming agent, catalyst and latent catalyst are used as additive and additive.Other can be also used as needed
Known additive and additive.
Suitable polyurethane system especially those transparent polyurethane systems.Because when manufacturing biggish molded part,
Low viscosity is required for the uniform filling of mold, so what is be particularly suitable is its viscosity≤600mPas (at 25 DEG C；Component
60 minutes after mixing), preferably≤300mPas, the polyurethane system of particularly preferred 200mPas.It is preferred that selecting isocyanic acid in this way
Reaction ratio between ester component and compound at least two pairs of reactive hydrogen atoms of isocyanates, so that anti-
Answer in mixture, the quantity of isocyanate groups and to the ratio between the quantity of the reactive group of isocyanates be 0.8 to
1.5, preferably 0.9 to 1.2, particularly preferred 1.0 to 1.1.
Epoxy resin is well known to those skilled in the art the epoxy resin that can be used for preparing fan blade, such as gloomy by writing brush
RIM 035C and the RIM H037 that company provides, herein without repeating.
In one embodiment, the web is prepared using polyurethane resin or epoxy resin.
In one embodiment, the blade root is formed by previously prepared prefabricated blade root, and the prefabricated blade root uses
Polyurethane resin or epoxy resin preparation.
In a preferred embodiment, the spar cap, web and prefabricated blade root all use polyurethane resin to prepare.
In one embodiment, the leaf shell, spar cap, blade root and web include reinforcing material.
The reinforcing material is selected from glass fibre sleave layer, glass fabric and glass fibre gauze, severing or pulverizes
Glass fibre or mineral fibres and the fibre based on polymer fiber, mineral fibres, carbon fiber, glass fibre or aramid fiber
Dimension pad, the non-fabrication object of fiber and fiber needle fabric and its mixture, the preferably non-fabrication object of fiberglass packing or glass fibre.
Preferably, if used, being uniaxially glass fibre for the reinforcing material in spar cap.
Preferably, if used, being three axial glass fibres for the reinforcing material in blade root.
Preferably, if used, being biaxially glass fibre for the reinforcing material in web.
Compared with epoxy resin, polyurethane resin has preferable mechanical property, especially compressive strength and modulus, stretching
Strength and modulus, shear strength and modulus and in terms of the mechanical property in 90 ° of machine directions.These performances are for wind
Machine blade design is most important.Spar cap is prepared by using polyurethane, the intensity of fan blade can be significantly improved and reduce it
Therefore deformation can advanced optimize fan blade design to mitigate the weight of blade.It is also such for prefabricated blade root.It is another
Aspect, polyurethane resin flows faster and solidifies faster, using polyurethane resin, the production week of spar cap, web and prefabricated blade root
Phase can reduce 30% or more, to save the production cost of fan blade.
Inventor is it was unexpectedly found that polyurethane resin and epoxy resin have very good interface performance, polyurethane
The lap shear strength of substrate and the epoxy resin being subsequently implanted into even taking than epoxy resin and the epoxy resin that is subsequently implanted into
Connect shear strength height, this spar cap for making it possible to be prepared by polyurethane resin, web and prefabricated blade root and epoxy resin blade
The combination of leaf shell.
In addition, inventor is also unexpectedly found that: lap shear fatigue shows polyurethane bottom and epoxy resin substrate
With very good dynamic interface performance.
According to the second aspect of the invention, the method for preparing above-mentioned composite wind turbine blade is provided, which is characterized in that packet
Include following steps:
Spar cap is formed using polyurethane resin and optional reinforcing material and optionally uses polyurethane resin or epoxy resin
Prefabricated blade root and web are formed with optional reinforcing material；
Gained spar cap and prefabricated blade root and optional reinforcing material are put into leaf shell mold tool, epoxy resin is injected and are allowed to
It is formed by curing half blade；With
Two half blades and web are adhesively-bonded together to form fan blade；
Wherein when prefabricated blade root and/or web are prepared using epoxy resin, corresponding component is optionally formed together with leaf shell.
Usual polyurethane resin and epoxy resin are all to prepare at the scene.
It usually will be by isocyanate component and the compound at least two pairs of reactive hydrogen atoms of isocyanates
Corresponding component is prepared in the mold vacuumized that the reaction mixture injection of composition first prepares.
In one embodiment, polyurethane resin is prepared using Baydur 78BD085 and Desmodur44CP20.
In a preferred embodiment, by isocyanate component and there will be at least two pairs of isocyanates in reactivity
Hydrogen atom compound composition reaction mixture 20 to 80 DEG C, particularly preferably 25 to 40 DEG C at a temperature of inject mold
In.
In one embodiment, after filling reaction mixture, the solidification of polyurethane can be accelerated by heating mould.
In a preferred embodiment, be injected by isocyanate component with have at least two pairs of isocyanates be in
The reaction mixture of the compound composition of reactive hydrogen atom 40 to 160 DEG C, optimization 60 to 120 DEG C, particularly preferably exist
70 to 90 DEG C of temperature-curable.
The method for forming spar cap, prefabricated blade root, web and leaf shell can be common method in fan blade processing.
Such as vacuum impregnation, prepreg method preparation spar cap can be used.
In leaf shell preparation process, it will usually core material be added.
In one embodiment, reinforcing material and spar cap and prefabricated blade root and core material are put into togerther in leaf shell mold tool.
In one embodiment, the core material can selected from PVC foam, PET foam, Ba Shamu, Sareform,
Tycor foam, glass fiber reinforced polyester urethane foam etc., such as the Ba Shamu that 3A composite company provides.
Bond adhesive used is common adhesive in fan blade field, for example, epobond epoxyn or
Polyurethane binder or polyurethane modified epoxy adhesive, such as the epoxy adhesive that Han Sen company provides.
In one embodiment, polyurethane resin and uniaxially glass fibre are shaped to spar cap.
In one embodiment, by polyurethane resin and biaxially, glass fibre and core material are shaped to web.
In one embodiment, polyurethane resin and three axial glass fibres are shaped to prefabricated blade root.
In one embodiment, glass fiber reinforced layer is put into blade and blade shell mold tool, it then will be prepared above
Spar cap and/or prefabricated blade root are put into blade and blade shell mold tool, core material (such as Ba Shamu) are placed on spar cap side and by glass fibers
Dimension enhancement layer is placed on the upper surface of entire laminate structures, is subsequently placed into release cloth, isolation film, flow-guiding screen and vacuum bag and keeps vacuum
To extract the air in laminate structures out, after reaching perfect vacuum, epoxy resin is injected into laminate structures immediately, works as fan blade
By after epoxy resin complete wetting, heating mould obtains laminate structures in mold so that epoxy resin cure formation half leaf shell
Obtain the first half blade.
Second half blade is prepared using step same as described above.
Existed using adhesive (such as epobond epoxyn or polyurethane binder or polyurethane modified epoxy adhesive)
Web is bonded at the spar cap of two leaf shells and two leaf shells are adhesively-bonded together to form fan blade.
Various molds used in the present invention are using common mold in fan blade preparation field.
According to the third aspect of the invention we, the wind turbine comprising above-mentioned composite wind turbine blade is provided.
Unless otherwise stated, all technical and scientific terms used herein have those skilled in the art of the invention
Normally understood identical meaning.When the definition of the terms has with the normally understood meaning of those skilled in the art of the invention
When contradiction, it is subject to definition described herein.
Unless otherwise stated, otherwise all numerical value of amount, reaction condition of expression ingredient used herein etc. are understood
To be modified by term " about ".
"and/or" used herein refers to one of mentioned element or whole.
" comprising " and "comprising" used herein cover the situation for only existing mentioned element and in addition to mentioned elements
There is also other situations for not referring to element.
Unless otherwise stated, all percentages are weight percentage herein,.
Now by embodiment with the purpose that illustrates rather than the limitation description present invention.
Embodiment
Raw material explanation:
Baydur78BD085: polyalcohol, Cohan are created polymer Co., Ltd and are provided.
Desmodur44CP20: diisocyanate, Cohan are created polymer Co., Ltd and are provided.
RIM035C: epoxy resin, You Hansen company provide.
RIMH037: epoxy resin, You Hansen company provide.
Ba Shamu: it is provided by 3Acomposite company.
TMUD 1200: glass fibre is provided by Chongqing Polycomp International Corporation.
Test method explanation:
Lap shear strength uses prEN 6060:1996-4 (fibre reinforced plastics-test method-lap shear strength)
It is measured.
Embodiment 1: the preparation of epoxy resin combination epoxy resin layer plywood
4 layers of glass fibre are layered on mold, successively put isolation film, release cloth and flow-guiding screen, glass fibre two above
Side connects exhaust tube and pitch tube, and surrounding places sealing joint strip, then mold is sealed and vacuumized with vacuum bag, and 35 DEG C of mold
Heating vacuumizes 2 hours.100 parts of RIM 035C and 30 parts of RIM H037 are uniformly mixed simultaneously vacuum outgas 5 minutes at room temperature,
Then epoxy resin is imported into mold by pitch tube.After the abundant sized glass fibres of resin, exhaust tube is closed, mold is heated to
80 DEG C and holding 4 hours.It closes the molds such as heating and is cooled to room temperature demoulding, complete the preparation of epoxy resin substrate.
4 layers of glass fibre are layered in epoxy resin substrate, the above method is repeated, import epoxy resin and are solidified at 80 DEG C
Epoxy resin combination epoxy resin layer plywood is obtained within 4 hours, sampling carries out lap shear strength test and endurance test.
Embodiment 2: the preparation of polyurethane resin combination epoxy resin layer plywood
4 layers of glass fibre are layered on mold, successively put isolation film, release cloth and flow-guiding screen, glass fibre two above
Side connects exhaust tube and pitch tube, and surrounding places sealing joint strip, then mold is sealed and vacuumized with vacuum bag, and 35 DEG C of mold
Heating vacuumizes 2 hours.100 parts of Baydur78BD085 and 84 part of Desmodur44CP20 are uniformly mixed at room temperature and true
Sky degassing 5 minutes, then imports mold by pitch tube for polyurethane resin.After the abundant sized glass fibres of resin, closes and take out
Tracheae, mold are heated to 70 DEG C and are kept for 4 hours.It closes the molds such as heating and is cooled to room temperature demoulding, complete polyurethane bottom
Preparation.
4 layers of glass fibre are layered on polyurethane bottom, the above method is repeated, import epoxy resin and solidify 4 at 80 DEG C
Hour obtains polyurethane resin combination epoxy resin layer plywood, and sampling carries out lap shear strength test and endurance test.
Following table summarizes the size and lap shear strength of sample obtained by Examples 1 and 2.
The result shows that the lap shear strength of polyurethane bottom and the epoxy resin being subsequently implanted into than epoxy resin with it is subsequent
The lap shear strength of the epoxy resin of injection is high.
Fig. 1 shows the testing fatigue curve of sample obtained by embodiment 1, from the available following result of curve:
Fig. 2 shows the testing fatigue curve of sample obtained by embodiment 2, from the available following result of curve:
The slope index that polyurethane bear building-up closes the S-N of epoxy resin layer plywood as the result is shown is 15.7 and epoxy resin-matrix
The slope index that bear building-up closes epoxy resin layer plywood S-N is 11.9.As a result also show that polyurethane bear building-up closes epoxy resin layer and closes
The 10 of plate6Stress value σ when secondary load cyclea(50%S-N curve) is 9.7Mpa, and epoxy resin-matrix bear building-up closes epoxy resin layer
The 10 of plywood6Stress value σ when secondary load cyclea(50%S-N curve) is 8.9Mpa.This shows that polyurethane bear building-up closes asphalt mixtures modified by epoxy resin
The fatigue performance of rouge laminate is significantly more preferable than epoxy resin-matrix bear building-up conjunction epoxy resin layer plywood.
Embodiment 3: the preparation of fan blade
The preparation of fan blade of the present invention is described referring now to Fig. 3 and Fig. 4.By glass fibre and other optional strengthening materials
Material is layered on mold, successively puts isolation film, release cloth and flow-guiding screen above, and glass fibre two sides connect exhaust tube and resin
Pipe, surrounding place sealing joint strip, then mold are sealed and vacuumized with vacuum bag, 35 DEG C of mold heating vacuumize 2 hours.It will
100 parts of Baydur78BD085 and 84 part of Desmodur44CP20 are deaerated by priming by vacuum equipment and are uniformly mixed, and then will be gathered
Urethane resin is imported in mold by pitch tube.After the abundant sized glass fibres of resin, exhaust tube is closed, mold is heated to 70 DEG C
And it is kept for 4 hours.It closes the molds such as heating and is cooled to room temperature demoulding, complete the system of polyurethane girder, web or prefabricated blade root
Standby, wherein spar cap uses one-way glass fiber as reinforcing material, and prefabricated blade root is using three axis glass fibres as reinforcing material.
Glass fiber reinforced layer is put into leaf shell mold tool, spar cap prepared above and prefabricated blade root are then put into leaf shell
In mold.Ba Sha wood is placed on spar cap side and glass fiber reinforced layer is placed on the upper surface of entire laminate structures.It is put into demoulding
Cloth, isolation film, flow-guiding screen and vacuum bag simultaneously keep vacuum to extract the air in laminate structures out.After reaching perfect vacuum, immediately
100 parts of RIM 035C and 30 parts of RIMH037 are injected into laminate structures.When the laminate structures in fan blade mould are by epoxy resin
After complete wetting, heating mould is to 80 DEG C and is kept for 4 hours so that epoxy resin cure forms the first half blade.
Second half blade is prepared using step same as described above.
Web is bonded at the spar cap of two half blades using epobond epoxyn and bonds two half blades
Fan blade is formed together.
Although the present invention is described in detail above with respect to the object of the invention, it will be appreciated that, this detailed description is
Illustratively, other than the content that can be defined by the claims, without departing from spirit and scope of the present invention,
Those skilled in the art can carry out various changes.
Claims (10)
1. a kind of composite wind turbine blade, the blade includes leaf shell, web, spar cap and blade root, which is characterized in that the beam
Cap is prepared using polyurethane resin, and the leaf shell is prepared using epoxy resin.
2. fan blade according to claim 1, which is characterized in that the web uses polyurethane resin or epoxy resin
Preparation.
3. fan blade according to claim 1, which is characterized in that the blade root is by previously prepared prefabricated blade root come shape
At the prefabricated blade root is prepared using polyurethane resin or epoxy resin.
4. fan blade according to any one of claim 1-3, which is characterized in that the polyurethane resin is by having
The compound and diisocyanate of at least two pairs of reactive hydrogen atoms of isocyanates and/or reacting for polyisocyanates
It arrives.
5. fan blade according to any one of claim 1-3, which is characterized in that the leaf shell, spar cap, blade root and abdomen
Plate includes reinforcing material.
6. fan blade according to any one of claim 1-3, which is characterized in that the reinforcing material is selected from glass fibers
Tie up sleave layer, glass fabric and glass fibre gauze, severing or the glass fibre or mineral fibres that pulverize and based on poly-
Close the non-fabrication object of fiber mat, fiber and fiber needle fabric of fibres, mineral fibres, carbon fiber, glass fibre or aramid fiber
And its mixture.
7. a kind of method for preparing composite wind turbine blade according to claim 1 to 6, which is characterized in that
The following steps are included:
Spar cap is formed using polyurethane resin and optional reinforcing material and optionally uses polyurethane resin or epoxy resin and appoints
The reinforcing material of choosing forms prefabricated blade root and web；
Gained spar cap and prefabricated blade root and optional reinforcing material are put into leaf shell mold tool, epoxy resin is injected and are allowed to solidify
Form half blade；With
Two half blades and web are adhesively-bonded together to form fan blade；
Wherein when prefabricated blade root and/or web are prepared using epoxy resin, corresponding component is optionally formed together with leaf shell.
8. the method according to the description of claim 7 is characterized in that by will be by isocyanate component and at least two pairs
The reactive hydrogen atom of isocyanates compound composition reaction mixture at 20 to 80 DEG C, particularly preferably at 25 to 40 DEG C
At a temperature of inject in mold and prepare corresponding component.
9. according to the method described in claim 8, it is characterized in that, the reaction mixture injected exists in 40 to 160 DEG C, optimization
60 to 120 DEG C, particularly preferably in 70 to 90 DEG C of temperature-curable.
10. including the wind turbine of composite wind turbine blade according to claim 1 to 6.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951098.2A CN109667708A (en) | 2017-10-13 | 2017-10-13 | Composite wind turbine blade and the preparation method and application thereof |
| EP18783024.5A EP3694703A1 (en) | 2017-10-13 | 2018-10-11 | Composite wind turbine blade and manufacturing method and application thereof |
| PCT/EP2018/077683 WO2019072948A1 (en) | 2017-10-13 | 2018-10-11 | Composite wind turbine blade and manufacturing method and application thereof |
| US16/754,447 US20200316892A1 (en) | 2017-10-13 | 2018-10-11 | Composite wind turbine blade and manufacturing method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951098.2A CN109667708A (en) | 2017-10-13 | 2017-10-13 | Composite wind turbine blade and the preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109667708A true CN109667708A (en) | 2019-04-23 |
Family
ID=66138664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710951098.2A Pending CN109667708A (en) | 2017-10-13 | 2017-10-13 | Composite wind turbine blade and the preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109667708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085221A (en) * | 2021-03-29 | 2021-07-09 | 北京化工大学 | Continuous fiber reinforced thermoplastic resin vacuum bag pressing forming device and method |
| CN114347510A (en) * | 2022-01-10 | 2022-04-15 | 浙江联洋新材料股份有限公司 | Preparation process and application of polyurethane resin composite polyurethane foam material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160146185A1 (en) * | 2014-11-25 | 2016-05-26 | General Electric Company | Methods for manufacturing a spar cap for a wind turbine rotor blade |
-
2017
- 2017-10-13 CN CN201710951098.2A patent/CN109667708A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160146185A1 (en) * | 2014-11-25 | 2016-05-26 | General Electric Company | Methods for manufacturing a spar cap for a wind turbine rotor blade |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085221A (en) * | 2021-03-29 | 2021-07-09 | 北京化工大学 | Continuous fiber reinforced thermoplastic resin vacuum bag pressing forming device and method |
| CN113085221B (en) * | 2021-03-29 | 2022-04-26 | 北京化工大学 | Continuous fiber reinforced thermoplastic resin vacuum bag pressing forming device and method |
| CN114347510A (en) * | 2022-01-10 | 2022-04-15 | 浙江联洋新材料股份有限公司 | Preparation process and application of polyurethane resin composite polyurethane foam material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11904582B2 (en) | Use of layer structures in wind power plants | |
| US9085990B2 (en) | Use of layer structures in wind power plants | |
| CN103201304B (en) | Fiber composite component and preparation method thereof | |
| CN107771193B (en) | Polyurethane system for a layer structure in a wind turbine | |
| EP3694703A1 (en) | Composite wind turbine blade and manufacturing method and application thereof | |
| CN109667708A (en) | Composite wind turbine blade and the preparation method and application thereof | |
| CN109265639A (en) | A kind of modified polyurethane composition with heat resistance | |
| CN106232671B (en) | Composite fibre component and its manufacture | |
| CN106459363B (en) | Hydrophobic polyol-based composite parts | |
| EP2886322A1 (en) | Method for producing compound components | |
| US20140072753A1 (en) | Process for producing sandwich elements | |
| WO2014040966A1 (en) | Method for producing sandwich elements | |
| CN102848508A (en) | Method for manufacturing polyurethane bridge support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190423 |